Gender Differential Item Functioning of Test Items of 2015 Joint Senior Secondary Ii Mathematics Promotion Examination in Ondo State, Nigeria
The research is aimed at finding out whether the multiple-choice mathematic items of Ondo State Joint Senior Secondary II Promotion Examination (OSJSSPE) administered in 2015 function differentially in terms of the gender (male and female) of the examinees and also investigate the general performance of students in the OSJSSPE multiple–choice mathematics items administered in 2015. The study employed an ex-post facto research design. A sample of 3,135 examinees was selected from a population of 52,922 examinees who sat for the examination using two-stage random sampling techniques. One research question was raised, and one hypothesis formulated and tested for significance at p<0.05 level. The analyses revealed that the general performance of the students in the OSJSSPE multiple– choice mathematics items administered in 2015 was high. However, the examinees of equal ability from both male and female students had a different probability of answering some items correctly; thus, the multiple-choice mathematics items of OSJSSPE administered in 2015 functioned differentially on male and female examinees.
